1 /* 2 * Copyright (c) 2004, 2005, Voltaire, Inc. All rights reserved. 3 * Copyright (c) 2005 Intel Corporation. All rights reserved. 4 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. 5 * 6 * This software is available to you under a choice of one of two 7 * licenses. You may choose to be licensed under the terms of the GNU 8 * General Public License (GPL) Version 2, available from the file 9 * COPYING in the main directory of this source tree, or the 10 * OpenIB.org BSD license below: 11 * 12 * Redistribution and use in source and binary forms, with or 13 * without modification, are permitted provided that the following 14 * conditions are met: 15 * 16 * - Redistributions of source code must retain the above 17 * copyright notice, this list of conditions and the following 18 * disclaimer. 19 * 20 * - Redistributions in binary form must reproduce the above 21 * copyright notice, this list of conditions and the following 22 * disclaimer in the documentation and/or other materials 23 * provided with the distribution. 24 * 25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 32 * SOFTWARE. 33 * 34 * $Id: mad_priv.h 2730 2005-06-28 16:43:03Z sean.hefty $ 35 */ 36 37 #ifndef __IB_MAD_PRIV_H__ 38 #define __IB_MAD_PRIV_H__ 39 40 #include <linux/pci.h> 41 #include <linux/kthread.h> 42 #include <linux/workqueue.h> 43 #include <rdma/ib_mad.h> 44 #include <rdma/ib_smi.h> 45 46 47 #define PFX "ib_mad: " 48 49 #define IB_MAD_QPS_CORE 2 /* Always QP0 and QP1 as a minimum */ 50 51 /* QP and CQ parameters */ 52 #define IB_MAD_QP_SEND_SIZE 128 53 #define IB_MAD_QP_RECV_SIZE 512 54 #define IB_MAD_SEND_REQ_MAX_SG 2 55 #define IB_MAD_RECV_REQ_MAX_SG 1 56 57 #define IB_MAD_SEND_Q_PSN 0 58 59 /* Registration table sizes */ 60 #define MAX_MGMT_CLASS 80 61 #define MAX_MGMT_VERSION 8 62 #define MAX_MGMT_OUI 8 63 #define MAX_MGMT_VENDOR_RANGE2 (IB_MGMT_CLASS_VENDOR_RANGE2_END - \ 64 IB_MGMT_CLASS_VENDOR_RANGE2_START + 1) 65 66 struct ib_mad_list_head { 67 struct list_head list; 68 struct ib_mad_queue *mad_queue; 69 }; 70 71 struct ib_mad_private_header { 72 struct ib_mad_list_head mad_list; 73 struct ib_mad_recv_wc recv_wc; 74 struct ib_wc wc; 75 DECLARE_PCI_UNMAP_ADDR(mapping) 76 } __attribute__ ((packed)); 77 78 struct ib_mad_private { 79 struct ib_mad_private_header header; 80 struct ib_grh grh; 81 union { 82 struct ib_mad mad; 83 struct ib_rmpp_mad rmpp_mad; 84 struct ib_smp smp; 85 } mad; 86 } __attribute__ ((packed)); 87 88 struct ib_mad_agent_private { 89 struct list_head agent_list; 90 struct ib_mad_agent agent; 91 struct ib_mad_reg_req *reg_req; 92 struct ib_mad_qp_info *qp_info; 93 94 spinlock_t lock; 95 struct list_head send_list; 96 struct list_head wait_list; 97 struct list_head done_list; 98 struct work_struct timed_work; 99 unsigned long timeout; 100 struct list_head local_list; 101 struct work_struct local_work; 102 struct list_head rmpp_list; 103 104 atomic_t refcount; 105 wait_queue_head_t wait; 106 }; 107 108 struct ib_mad_snoop_private { 109 struct ib_mad_agent agent; 110 struct ib_mad_qp_info *qp_info; 111 int snoop_index; 112 int mad_snoop_flags; 113 atomic_t refcount; 114 wait_queue_head_t wait; 115 }; 116 117 struct ib_mad_send_wr_private { 118 struct ib_mad_list_head mad_list; 119 struct list_head agent_list; 120 struct ib_mad_agent_private *mad_agent_priv; 121 struct ib_mad_send_buf send_buf; 122 DECLARE_PCI_UNMAP_ADDR(mapping) 123 struct ib_send_wr send_wr; 124 struct ib_sge sg_list[IB_MAD_SEND_REQ_MAX_SG]; 125 __be64 tid; 126 unsigned long timeout; 127 int retries; 128 int retry; 129 int refcount; 130 enum ib_wc_status status; 131 132 /* RMPP control */ 133 int last_ack; 134 int seg_num; 135 int newwin; 136 int total_seg; 137 int data_offset; 138 int pad; 139 }; 140 141 struct ib_mad_local_private { 142 struct list_head completion_list; 143 struct ib_mad_private *mad_priv; 144 struct ib_mad_agent_private *recv_mad_agent; 145 struct ib_mad_send_wr_private *mad_send_wr; 146 }; 147 148 struct ib_mad_mgmt_method_table { 149 struct ib_mad_agent_private *agent[IB_MGMT_MAX_METHODS]; 150 }; 151 152 struct ib_mad_mgmt_class_table { 153 struct ib_mad_mgmt_method_table *method_table[MAX_MGMT_CLASS]; 154 }; 155 156 struct ib_mad_mgmt_vendor_class { 157 u8 oui[MAX_MGMT_OUI][3]; 158 struct ib_mad_mgmt_method_table *method_table[MAX_MGMT_OUI]; 159 }; 160 161 struct ib_mad_mgmt_vendor_class_table { 162 struct ib_mad_mgmt_vendor_class *vendor_class[MAX_MGMT_VENDOR_RANGE2]; 163 }; 164 165 struct ib_mad_mgmt_version_table { 166 struct ib_mad_mgmt_class_table *class; 167 struct ib_mad_mgmt_vendor_class_table *vendor; 168 }; 169 170 struct ib_mad_queue { 171 spinlock_t lock; 172 struct list_head list; 173 int count; 174 int max_active; 175 struct ib_mad_qp_info *qp_info; 176 }; 177 178 struct ib_mad_qp_info { 179 struct ib_mad_port_private *port_priv; 180 struct ib_qp *qp; 181 struct ib_mad_queue send_queue; 182 struct ib_mad_queue recv_queue; 183 struct list_head overflow_list; 184 spinlock_t snoop_lock; 185 struct ib_mad_snoop_private **snoop_table; 186 int snoop_table_size; 187 atomic_t snoop_count; 188 }; 189 190 struct ib_mad_port_private { 191 struct list_head port_list; 192 struct ib_device *device; 193 int port_num; 194 struct ib_cq *cq; 195 struct ib_pd *pd; 196 struct ib_mr *mr; 197 198 spinlock_t reg_lock; 199 struct ib_mad_mgmt_version_table version[MAX_MGMT_VERSION]; 200 struct list_head agent_list; 201 struct workqueue_struct *wq; 202 struct work_struct work; 203 struct ib_mad_qp_info qp_info[IB_MAD_QPS_CORE]; 204 }; 205 206 extern kmem_cache_t *ib_mad_cache; 207 208 int ib_send_mad(struct ib_mad_send_wr_private *mad_send_wr); 209 210 struct ib_mad_send_wr_private * 211 ib_find_send_mad(struct ib_mad_agent_private *mad_agent_priv, __be64 tid); 212 213 void ib_mad_complete_send_wr(struct ib_mad_send_wr_private *mad_send_wr, 214 struct ib_mad_send_wc *mad_send_wc); 215 216 void ib_mark_mad_done(struct ib_mad_send_wr_private *mad_send_wr); 217 218 void ib_reset_mad_timeout(struct ib_mad_send_wr_private *mad_send_wr, 219 int timeout_ms); 220 221 #endif /* __IB_MAD_PRIV_H__ */ 222